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ClinicalTrials.gov public records Last synced Oct 25, 2026, 2:55 PM EDT

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Showing 1009–1032 of 1,048 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Immunity Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

Safety of and Immune Response of a 2-dose Regimen of rDEN1delta30 Dengue Virus Vaccine

NCT00473135
View directory record Official record
Conditions
Dengue
Interventions
rDEN1delta30, Placebo
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2007
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 13, 2010 · Synced Oct 25, 2026, 2:55 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Safety of and Immune Response to Dolutegravir in HIV-1 Infected Infants, Children, and Adolescents

NCT01302847
View directory record Official record
Conditions
HIV Infections
Interventions
DTG film-coated tablets, DTG granules for suspension, DTG dispersible tablets
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
4 Weeks to 17 Years
Enrollment
181 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2023
U.S. locations
17
States / cities
La Jolla, California • Long Beach, California • Los Angeles, California + 11 more
Source: ClinicalTrials.gov public record
Updated Dec 12, 2024 · Synced Oct 25, 2026, 2:55 PM EDT
Completed Phase 2 Interventional

A Pilot Study of the Combination of Retinoic Acid and Interferon-Alpha2a for the Treatment of Lymphoproliferative Disorders in Children With Immunodeficiency Syndromes

NCT00001438
View directory record Official record
Conditions
HIV Infections, Immunologic Deficiency Syndromes, Lymphoproliferative Disorders
Interventions
all-trans-retinoic acid with IFN-alpha2a
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
Not listed
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1995 – 2000
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 25, 2026, 2:55 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety of and Immune Response to DEN4 Vaccine Component Candidate for Dengue Virus

NCT00919178
View directory record Official record
Conditions
Dengue Shock Syndrome, Dengue Hemorrhagic Fever
Interventions
DEN4 Vaccine Candidate, DEN4 Vaccine Placebo
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
2
States / cities
Baltimore, Maryland • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Jan 3, 2013 · Synced Oct 25, 2026, 2:55 PM EDT
Recruiting No phase listed Observational

Respiratory Virus Sampling and Repository

NCT05266222
View directory record Official record
Conditions
Influenza, COVID-19
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
3 Years and older
Enrollment
20,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2031
U.S. locations
2
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 17, 2026 · Synced Oct 25, 2026, 2:55 PM EDT
Completed No phase listed Observational

Natural History of Systemic and Nasal Mucosal Immunity to Influenza and SARS-CoV-2 in Adults After Vaccination

NCT04794829
View directory record Official record
Conditions
Influenza, COVID-19
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 120 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Oct 25, 2026, 2:55 PM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

Evaluating the Human Immune Response to the JYNNEOS Vaccine

NCT06366672
View directory record Official record
Conditions
Vaccinia, Virus Diseases
Interventions
JYNNEOS (Smallpox and Monkeypox Vaccine, Live, Nonreplicating) suspension for subcutaneous injection, Phlebotomy, Research bronchoscopy, Skin punch biopsy, Bone marrow aspiration
Biological · Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 60 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Oct 21, 2026 · Synced Oct 25, 2026, 2:55 PM EDT
Terminated Phase 1 Interventional

Local Modulation of Immune Receptors to Enhance the Response to Dendritic Cell Vaccination in Metastatic Melanoma

NCT01216436
View directory record Official record
Conditions
Metastatic Melanoma
Interventions
Vaccination with RNA-transfected mature autologous DC
Biological
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated May 25, 2015 · Synced Oct 25, 2026, 2:55 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

A Study to Evaluate the Immune Response and Safety of an Influenza Vaccine in Adults 18 Years of Age and Above

NCT07204964
View directory record Official record
Conditions
Influenza, Human
Interventions
Flu mRNA (Formulation B1), Flu mRNA (Formulation B3), Flu mRNA(Formulation A), Comparator 1, Comparator 2, Comparator 3
Biological · Combination Product
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
971 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
15
States / cities
Guntersville, Alabama • Canoga Park, California • Walnut Creek, California + 12 more
Source: ClinicalTrials.gov public record
Updated Sep 18, 2026 · Synced Oct 25, 2026, 2:55 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study to Find the Dose and Assess the Immune Response and Safety of a Vaccine Against Influenza in Healthy Younger and Older Adults

NCT06431607
View directory record Official record
Conditions
Influenza, Human
Interventions
F2G22B/DL001Z, F2H23D/DL001Z-NH, F2H23B/DL001Z-NH, F2H23H/DL001Z, FDQ23A-NH (Flu D-QIV), GSK5800544A, Flu D-TIV, F2H23A/DL001Z-NH, F2H23G/DL001Z, Fluzone HD Quadrivalent, Fluzone HD
Biological · Combination Product
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 85 Years
Enrollment
845 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
18
States / cities
Hialeah, Florida • Miami, Florida • Chicago, Illinois + 14 more
Source: ClinicalTrials.gov public record
Updated Mar 10, 2026 · Synced Oct 25, 2026, 2:55 PM EDT
Completed Phase 1 Interventional

VRC 307: A Double-Blind, Randomized Phase I Study of the Safety and Immunogenicity of a Prime-Boost Schedule of the Investigational DNA Trivalent Influenza Vaccine, VRC-FLUDNA047-00-VP, Followed by the 2008/2009 Seasonal Influenza Trivalent Inactivat...

NCT00858611
View directory record Official record
Conditions
Influenza, Human
Interventions
VRC-FLUDNA047-00-VP, Flulaval (Registered) Seasonal Influenza Vaccine
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 70 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 25, 2026, 2:55 PM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers

Immune Response and Potential Booster for Patients Who Have Received HER2-pulsed DC1

NCT03630809
View directory record Official record
Conditions
Breast Cancer, HER2-positive Breast Cancer, HER-2 Gene Amplification, HER2 Positive Breast Carcinoma, HER-2 Protein Overexpression, Breast Cancer, Male, Breast Cancer Female
Interventions
HER2 DC1 Vaccine
Biological
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Apr 25, 2022 · Synced Oct 25, 2026, 2:55 PM EDT
Terminated Phase 2 Interventional Results available

The Effects of Vemurafenib + Cobimetinib on Immunity in Patients With Melanoma

NCT01813214
View directory record Official record
Conditions
Melanoma
Interventions
Vemurafenib, Cobimetinib
Drug
Lead sponsor
Georgetown University
Other
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
4
States / cities
Washington D.C., District of Columbia • Boston, Massachusetts • Houston, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 26, 2019 · Synced Oct 25, 2026, 2:55 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Safety of and Immune Response to a Meningitis Vaccine in HIV-Infected Children and Youth

NCT00459316
View directory record Official record
Conditions
HIV Infections, Meningitis
Interventions
Quadrivalent meningococcal conjugate vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
2 Years to 24 Years
Enrollment
384 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2013
U.S. locations
35
States / cities
Alhambra, California • Long Beach, California • Los Angeles, California + 25 more
Source: ClinicalTrials.gov public record
Updated Nov 3, 2021 · Synced Oct 25, 2026, 2:55 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

COVID-19 Vaccine Response in Treated MS Patients

NCT05060354
View directory record Official record
Conditions
Multiple Sclerosis, Healthy
Interventions
Blood draw
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
159 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 25, 2024 · Synced Oct 25, 2026, 2:55 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Immunologic Response to FluMist vs. Flucelvax

NCT03982069
View directory record Official record
Conditions
Influenza, Human, Immune Response
Interventions
FluMist live attenuated influenza vaccine, Flucelvax inactivated influenza vaccine
Biological
Lead sponsor
Richard Zimmerman MD
Other
Eligibility
4 Years to 21 Years
Enrollment
465 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 14, 2021 · Synced Oct 25, 2026, 2:55 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluation of Safety, Tolerability and Immune Responses of Ebola-S and Marburg Vaccines in Healthy Adults

NCT04723602
View directory record Official record
Conditions
Ebola Virus Disease, Marburg Virus Disease
Interventions
cAd3-Marburg, cAd3-EBO-S
Biological
Lead sponsor
Albert B. Sabin Vaccine Institute
Other
Eligibility
18 Years to 50 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Aug 3, 2022 · Synced Oct 25, 2026, 2:55 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Safety of and Immune Response to a Prime-Boost Vaccine Regimen in HIV-Uninfected Vaccine-Naive Adults

NCT00820846
View directory record Official record
Conditions
HIV Infections
Interventions
pGA2/JS7 DNA vaccine, Placebo, MVA/HIV62 vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
299 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2014
U.S. locations
10
States / cities
Birmingham, Alabama • San Francisco, California • Decatur, Georgia + 5 more
Source: ClinicalTrials.gov public record
Updated Aug 9, 2022 · Synced Oct 25, 2026, 2:55 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

A Laboratory Evaluation of the Humoral Immune Response in Adults and Children to the H1 Hemagglutinin (HA) Stalk Domain and Other Influenza A Virus Protein Epitopes, After Administration of GlaxoSmithKline (GSK) Biologicals' Pandemic Influenza Vaccines

NCT02415842
View directory record Official record
Conditions
Immunologic Tests
Interventions
Serum samples
Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
6 Months to 64 Years
Enrollment
414 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 23, 2019 · Synced Oct 25, 2026, 2:55 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Evaluation of Patients With Immune Function Abnormalities

NCT00128973
View directory record Official record
Conditions
Chronic Granulomatous Disease (CGD), X-Linked Severe Combined Immune Deficiency (XSCID), Leukocyte Adhesion Deficiency 1 (LAD), Graft Versus Host Disease (cGvHD)
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Not listed
Enrollment
3,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Oct 25, 2026, 2:55 PM EDT
Completed No phase listed Observational

Cell Mediated Immunity With Risk of Cytomegalovirus (CMV) in Solid Organ Transplant Recipients

NCT01558037
View directory record Official record
Conditions
Awaiting Organ Transplant, Infection in Solid Organ Transplant Recipients
Interventions
Not listed
Lead sponsor
Michael Ison
Other
Eligibility
18 Years and older
Enrollment
113 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 5, 2013 · Synced Oct 25, 2026, 2:55 PM EDT
Completed Phase 1 Interventional

Nasal Protollin in Early Symptomatic Alzheimer's Disease

NCT07187141
View directory record Official record
Conditions
Alzheimer Disease (AD)
Interventions
Protollin
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
60 Years to 85 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 22, 2025 · Synced Oct 25, 2026, 2:55 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Protective Immunity Project 02

NCT00833651
View directory record Official record
Conditions
Kidney Transplant, Immunology, Immunosuppression
Interventions
Not listed
Lead sponsor
Emory University
Other
Eligibility
18 Years to 59 Years
Enrollment
97 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2011
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Nov 25, 2013 · Synced Oct 25, 2026, 2:55 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Washington University WU 409: Immune Responses to Rabies Vaccine.

NCT07399951
View directory record Official record
Conditions
Healthy Participants
Interventions
Imovax, RabAvert, HyperRAB
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 2, 2026 · Synced Oct 25, 2026, 2:55 PM EDT